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NEED EXPLANATIONS The following figures represent distributions of gas molecules

ID: 521695 • Letter: N

Question

NEED EXPLANATIONS

The following figures represent distributions of gas molecules between two containers connected by an open tube. Which one represents the configuration with the largest number of equivalent microstates (most ways of achieving it)? Tritium (^3H) is used in glowing "EXIT" signs located where there is no electricity for lightbulbs. If the half-life of tritium is 12.26 years, what percentage of the original quantity of the isotope is left in the sign after 18.5 years? a: 63.2% b. 25.0% c. 0.632% d. 1.51% e. 35.1% The mechanism for the reaction 2 H_2O_2(aq) rightarrow 2H_2O(t) + O_2(g) in the presence of I^- (aq) is proposed to be: Step 1: H_2O_2(aq) + I^-(aq) rightarrow H_2O(l) + OI^-(aq) (slow) Step 2: H_2O_2(aq) + OI^-(aq) rightarrow H_2O(l) + O_2(g) + I^-(aq) (fast) What is the molecularity of the rate-determining step? a. termolecular b. unimolecular c. bimolecular d. zeromolecular e. More information is needed to answer this question. When carbon burns to produce carbon dioxide, 395 kJ/mol of energy is released. Approximately how much greater is the energy released per mole of deuterium in the following fusion process: 2^2H rightarrow^4He? The atomic masses are 2.0141 g/mol for^2H and 4 g/mol for^4He (1 kJ = 1000 kg m^2/s^2) a. 10^6 b. 10^4 c. 10^8 d. 10^10 e. 10^2 Which of the following statements regarding free energy is NOT true? a. The free energy of a system increases during the course of a spontaneous reaction as the entropy of the universe increases b. The Gibbs free energy of a spontaneous process is negative. c. The Gibbs free energy change of a reaction reflects the work associated with processes happening at constant temperature and pressure. d. Free energy represents the minimum work that would be required to make a thermodynamic system undergo a nonspontaneous change. e. Free energy represents the maximum work that a thermodynamic system can perform during a spontaneous change.

Explanation / Answer

Ans 1. e

Both the containers in picture e has same number and type of gas molecules , hence the microstates of both the thermodynamic systems is same. Thus internal energy , heart , work , entropy of both these systems will be more or less same .